iTowBot is powered by 24 volts, and capable of towing a 15,000-pound gross weight aircraft. Standard model comes with standard single wheel carriage. Carriage swivels as well as iTowBot. Also available with a tail-wheel insert for tail-dragger aircraft. The iTowBot is now available with a built-in 28-volt auxiliary power plug and Power cord for running accessories on the ramp or in the hangar. Standard iTowBot with hitch adaptor is powered by 24 volts and capable of towing a boat up to 25 feet. For more information visit www.tracetowbots.com.